12000100001 has 2 divisors, whose sum is σ = 12000100002. Its totient is φ = 12000100000.

The previous prime is 12000099989. The next prime is 12000100033. The reversal of 12000100001 is 10000100021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10246500625 + 1753599376 = 101225^2 + 41876^2 .

It is a cyclic number.

It is not a de Polignac number, because 12000100001 - 2¹⁴ = 12000083617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12000100061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000050000 + 6000050001.

It is an arithmetic number, because the mean of its divisors is an integer number (6000050001).

Almost surely, 2^12000100001 is an apocalyptic number.

It is an amenable number.

12000100001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12000100001 is an equidigital number, since it uses as much as digits as its factorization.

12000100001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 5.

Adding to 12000100001 its reverse (10000100021), we get a palindrome (22000200022).

The spelling of 12000100001 in words is "twelve billion, one hundred thousand, one".